hswtow



R. T NEWTON.

SHOCK ABSORBER..

APPLICATION FILED FEB. 2. 1918.

1 ififi 358 Paton {ted J une 10, 1919.

in wanton" for the wheel 11.

i was 11AM RICHARD ll'll'W'NlN, OF NEW YORK, N. Y.

SHiIlCK-AEZSURBER.

Specification of Letters Patent.

Patented June 10, 1919;

Application filed February 2,1918. Serial No. 215,176.

To all whom it may concern:

Be it known that l, llrormno T. hlnw'ron, a citizen of the llnited States of America, residing;- in the city, county, and State of New Yolk have invented certain. new and useful inn ovcmcnts in Shock-Absorbers, of which the following is a specification.

lvly invention relates to shock absorbers and particularly to a shock absorber for automobiles, the object of my invention being to provide a relatively simple and. ellicient construction adapted to be operatively interposed her on the usual supportiiw spring and chass where said spring arr nged transn'erscl of the longitudinal axis or the chassis, is the case in the well known Ford car.

ln the a wompahying drawings, s a front elevation oi. portion of .le to which my invention is ap plied in one form;

l ig, is a plan, drawn to a larger scale, of the present shock absorber in one form; Fig. 3 is a section on the line 3-3, Fig. 1; i1 i9. is a front elevation of a modified shock absorber spring constri'iction; and

Fig. a section on the line 5-5,' Fig. l. "in the construction illustrated in Figs. 1

l0 3, the automobile chassis comprises the' usual cross bar 10 at the front end of the car, and upon which is secured the mounting The automobile body frame 12 is secured by clips 18 to a leaf spring lhlying above the chassis cross bar 1.0

and normally connected thereto by a pair of links 15 and 16, the upper ends of" which are coinrnonl jointed together and the lower end of one of whichviz. 15-is jointed to the end of the spring 1 while the lower end of the other linkviz. 16-is jointed to the eye of a bolt 17 which engagesthe chassis cross bar 10. A flexible coiniection thus established between the spring and the chassis which permits the spring 14; to flex freely while, at the same time, rigidly con nected to the chassis. stand severev shocks to which the car may be subjected when passing over rough roads, the spring; is must be made relatively rigid, which prevents a soft and easy riding of the car when passing over slight irregularities in lhe roadway. The object of the present invention is to provide a supplemental spring suspension which ,will take up the lighter jolts and stressesand thus cushion In order to withthe action of the heavier supporting spring down through perforated guide flanges- 24--25, -formingport-ion of bracket arms 262l, pivoted together at 28 and clamped upon the chassis bar 10 by a bolt 29 passing through lugs 30 at the lower end of-the bracket arms. Confined between the seats 2'0-21 and the flanges of the bracket are ushioning coil springs Beneath the flanges of the bracket are'rebound springs 3334l coiled upon the downwardly extended ends of the guide pins 22-23 and confined by the nuts 35-36 which screw upon the lower ends ofthe guide Pics.

The operation of the shock absorber is readily understood. When the chassis cross bar 10 is thrust upward by a bump in, the road, the lifting of the link 16 tilts the inner end of the lever 18 downward against the action of the springs 31,32, the fulcrum 19 of the lever remaining practically quiescent, and the spring 14 substantially unfiexed, unless the bump is a severe one. ll: the spring la is flexed, however, through a severe shock to the car, there is a tendency for this sprlng to give an upthrow to the carbody. This would cause a jolt to the car body were the otion in this direction not opposed by a tag-up spring. It will be seen, however, that when the spring 1 1 throws the car upward, the lever 18, now fulcruming about'the center 20, moves/upward against the action of the rebound springs 33-3 land thus opposes excessive motion in the direction indicated. In Figs. 4 and 5 l have shown a shock absorber or different construction, in that, in place of a pair-of coil springs such as indicated in llto 3, I use a pair of spiral springs 3738, the upper ends of which are held in sockets 39 in the free ends of the, spaced arms a, and i) of the lever 18, while the. inner ends of the spirals are mounted on a bolt 40 which passes through bracket 7 arms 4142 and holds the same in engage- 5 with the top flange of the eye-shaped. bar 10. Spacing slecvcs l? may he .prposed between the ln'arkels -l'l--l-:% and tlK heads of the bolt to give the spring ends freedom of oscillation on the bolt it).

in bot-h arrangements the construction is not only extremely simple and ineilipcnsivc, but entails nothing more than clan'iping a l'n'ackct to the chassis front bar 10 and connecting the le er 18 at its two pivot points 16l--20 to the upper ends or the links 15-16,

which are (.OXl'llllOlllY used in the mounting of the leaf spring 14- upon the ch: ssis. No special construction or alteration of the chassis is required, nor is the latter in any way weakened by the drilling of bolt holes or the like. The present device is inconsnicuons and yet perfectly ethcient and at itordsconsiderable range of adjustn'ient for the tension of the springs 31 to Eli by the simple expedient of tightening up the nuts 0" 9 :)--r 7 U ,ldo not limit my invention to the precise torn-lot coi'istruction indicated, which may die variously modified without departing and the chassis clement, substantially as de" scribed.

an s-lee to the chassis beneath the spring straddling end of the lever, and a pair of cushioning springs lying on opposite sides of the leaf spring and engaged between the abutment member clamped on the chassis and the overlying end of the lever.

A vehicle comprising a chassis and a body resiliently supported thereon, said resilient support comprising a Ieaispring carried by the body, a lever, one end of which straddles an end of the leaf spring, a lix'ik connecting the opposite end of the lever to so the chassis, a second link connecting the lever, intermediate its ends, to the end of the spring, an abutment memberrigidly clamped to-thc chassis beneath the spring straddling'end or the lever, and a pair of cushioning springs lying on opposite sides of the leaf spring and engaged between the abutment member clamped on the chassis and the overlying end of the lever, together with guide blots extending from said leverl '70 end through the abutment member clamped on the chassis and rebound cushionihg I springs interposed between the lower ends of said bolts and the abutment member, substantially as described.

ln testimony whereof I have signed my name to this specification.

RICHARD T. NEWTON. 

